2nd night out with the ED80

[sooty]

Was hoping for the Orion Nebula to climb a little higher,but alas,the eastern horizon was getting foggy.So thought i would try M33.

This is the result of 13x2min subs,with dark and bias frames subtracted,using a ED80 Pro/HEQ5.

Not quite sure why it seems a lot lighter on the right hand side of the pic??

 

Sooty.

[iwols]

great start sooty what camera were you using

[sooty]

55 minutes ago, iwols said:

great start sooty what camera were you using

I'm using a Nikon D90,and set the ISO to 800.I did think about fitting a LP filter,but read somewhere,that it wasn't possible with the ED80 with a reducer fitted??

[Mered]

This is a great start, a lot better than my first attempt at M33.

Have you tried taking any flat frames yet? Also might be worth stretching the dark frames in Photoshop/Pixinsight to see if the lightness shows up there. The bottom left corners of mine show some lightness, which I believe is amp-glow?

 

[Gerry Casa Christiana]

Great first picture! Must try that again myself. A bit more processing will darken that area.